<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
<!-- action中放入请求的路径 -->
<form action="login" method ="post">
    用户名 : <input type="text" name = "userName">
    密码 : <input type="text" name = "password">
    <input type="submit" value = "提交">
</form>
</body>
</html>